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Fluid wetting infiltration mechanism at the micro-contact zone boundary of rubber–glass interfaces

Minghua Pang (School of Mechanical and Electrical Engineering, Henan Institute of Science and Technology, Xinxiang, China and Hefei University of Technology, Hefei, China)
Lijie Ma (School of Mechanical and Electrical Engineering, Henan Institute of Science and Technology, Xinxiang, China)
Fanjing Meng (School of Mechanical Engineering, Henan Institute of Technology, Xinxiang, China)
Zhankui Wang (School of Mechanical and Electrical Engineering, Henan Institute of Science and Technology, Xinxiang, China)
Jianxiu Su (School of Mechanical and Electrical Engineering, Henan Institute of Science and Technology, Xinxiang, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 24 January 2020

Issue publication date: 6 April 2020

75

Abstract

Purpose

This paper aims to clarify the fluid infiltration mechanism at the micro-contact zone boundary of rubber-glass interfaces.

Design/methodology/approach

An in situ observation instrument was putted up; then the fluid infiltration process was recorded. Experimental results indicated that the fluid infiltration was more likely to occur in a high-contact-area-ratio zone, and the path order of fluid infiltration was first inner normal to the boundary of micro-contact area, and then along the boundary, at last external normal to the direction of boundary.

Findings

By analysis, capillary pressure is the driven force of fluid at interfaces. The micro-channel size at higher-contact-area-ratio zone is smaller, and the capillary pressure is bigger. Moreover, along different section directions of wedge-shaped region, the horizontal driving force of fluid is different due to difference of conical angle.

Originality/value

The main contribution of this study is proposing a new wedge-shaped model for better understanding the phenomena of fluid infiltration at rubber contact interfaces.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-10-2019-0453

Keywords

Acknowledgements

This study was supported by the national natural science foundation of China (Grant Nos. U1804142), science and technology plan projects of Henan Province (Grant Nos. 192102210216), science and technology plan projects of Henan Province (Grant Nos. 192102210211).

Citation

Pang, M., Ma, L., Meng, F., Wang, Z. and Su, J. (2020), "Fluid wetting infiltration mechanism at the micro-contact zone boundary of rubber–glass interfaces", Industrial Lubrication and Tribology, Vol. 72 No. 3, pp. 279-284. https://doi.org/10.1108/ILT-10-2019-0453

Publisher

:

Emerald Publishing Limited

Copyright © 2020, Emerald Publishing Limited

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